Cashner may be pitching his way on to a contender thanks to a revamped four-pitch mix that includes a four-seam fastball clocking in the high-90s again. His Opening Day clunker aside, Cashner is 4-1 with a 3.40 ERA over his past eight starts.

Coming off the shortest non-injury-affected start of his career, Freeland hopes to master the delivery changes he is trying. He is at home at Coors -- his 3.51 home ERA is the lowest by any Rox starter (minimum 100 IP).

The Orioles are desperately hoping Hess turns things around, given their lack of rotation depth. Now the right-hander faces his largest challenge yet, the Majors' leader in home runs allowed is set to make his first career start at Coors Field.

Marquez had his fastball working so well early against the Pirates (eight scoreless innings) that he could afford to give his curve three innings to come around. He has been the Rox’s best starter this season.